Nuclear charge radii of potassium isotopes beyond <math altimg="si1.gif" xmlns="http://www.w3.org/1998/Math/MathML"><mi>N</mi><mo>=</mo><mn>28</mn></math>
- Kreim, K.Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany
- Bissell, M.L.(Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
- Papuga, J.(Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
- Blaum, K.(Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)
- De Rydt, M.(Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
- Garcia Ruiz, R.F.(Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
- Goriely, S.(Institut d'Astronomie et d'Astrophysique, CP-226, Université Libre de Bruxelles, B-1050 Brussels, Belgium)
- Heylen, H.(Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
- Kowalska, M.(Physics Department, CERN, CH-1211 Geneva 23, Switzerland)
- Neugart, R.(Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)
- Neyens, G.(Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
- Nörtershäuser, W.(Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany)
- Rajabali, M.M.(Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
- Sánchez Alarcón, R.(GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany)
- Stroke, H.H.(Department of Physics, New York University, New York, NY 10003, USA)
- Yordanov, D.T.(Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)
DOIAbstract
We report on the measurement of optical isotope shifts for 38, 39, 42, 44, 46–51 K relative to 47 K from which changes in the nuclear mean square charge radii across the <math altimg="si1.gif" xmlns="http://www.w3.org/1998/Math/MathML"><mi>N</mi><mo>=</mo><mn>28</mn></math> shell closure are deduced. The investigation was carried out by bunched-beam collinear laser spectroscopy at the CERN-ISOLDE radioactive ion-beam facility. Mean square charge radii are now known from 37 K to 51 K, covering all <math altimg="si2.gif" xmlns="http://www.w3.org/1998/Math/MathML"><mi>ν</mi><msub><mrow><mi>f</mi></mrow><mrow><mn>7</mn><mo stretchy="false">/</mo><mn>2</mn></mrow></msub></math> -shell as well as all <math altimg="si3.gif" xmlns="http://www.w3.or...
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